EP 1452958 A2 20040901 - On-screen display unit
Title (en)
On-screen display unit
Title (de)
Bildschirmanzeigevorrichtung
Title (fr)
Unité d'affichage sur écran
Publication
Application
Priority
JP 2003047779 A 20030225
Abstract (en)
An on-screen display unit includes OSD RAMs (1a and 1b) each for storing data on one of OSD blocks to be subjected to OSD (on-screen display); a memory bus (11) for transferring data to be stored to the OSD RAMs (1a and 1b) from a CPU (4); and an OSD local bus (12) for transferring the data stored in the OSD RAMs (1a and 1b) to make the OSD. The OSD RAMs (1a and 1b) are supplied with the data to be stored through the control of switches (2a and 2b) alternately, and transfer the stored data to the OSD local bus 12 alternately. The on-screen display unit can cope with a high frequency OSD clock signal, and carry out the OSD normally. <IMAGE>
IPC 1-7
IPC 8 full level
G06F 3/14 (2006.01); G06F 13/00 (2006.01); G09G 5/00 (2006.01); G09G 5/18 (2006.01); G09G 5/22 (2006.01); G09G 5/397 (2006.01); G09G 5/399 (2006.01); H04N 5/445 (2011.01)
CPC (source: EP KR US)
G09G 5/003 (2013.01 - EP US); H04N 5/445 (2013.01 - KR); G09G 2340/12 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1452958 A2 20040901; CN 1525431 A 20040901; JP 2004258212 A 20040916; KR 20040076571 A 20040901; US 2004164988 A1 20040826
DOCDB simple family (application)
EP 03022640 A 20031006; CN 200310120707 A 20031128; JP 2003047779 A 20030225; KR 20030084948 A 20031127; US 66926103 A 20030925